Cyaarside, also called cyarside, is the As≡C− anion. Featuring a triple bond between arsenic and carbon, it is the arsenic analogue of cyanide and cyaphide.
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| Names | |
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| Preferred IUPAC name
Cyaarside | |
| Systematic IUPAC name
Arsenidocarbonate(II) | |
| Other names
Cyarside[1]
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| CAs− | |
| Molar mass | 86.933 g·mol−1 |
| Conjugate acid | Methylidynearsine |
| Related compounds | |
Related compounds
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CP−; CN−; AsCAs2− |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
editAn actinide cyaarside complex can be prepared by C−O bond cleavage of the arsaethynolate anion, the arsenic analogue of cyanate and phosphaethynolate.[2] Reaction of the uranium complex [((Ad,MeArO)3N)UIII(DME)] with one molar equivalent of [Na(OCAs)(dioxane)
2.5] in the presence of 2.2.2-cryptand results in the formation of a dinuclear, oxo-bridged uranium complex featuring a C≡As ligand.
See also
edit- arsaalkyne (As≡CR)
References
edit- ^ "Beyond Cyanide: Future Synthons Based on the Cyaphide and Cyarside Ions for the Synthesis of Designer Magnetic Coordination Polymers". Grants on the Web. EPSRC. Retrieved 5 August 2023.
- ^ Hoerger, Christopher J.; Heinemann, Frank W.; Louyriac, Elisa; Rigo, Massimo; Maron, Laurent; Grützmacher, Hansjörg; Driess, Matthias; Meyer, Karsten (2019). "Cyaarside (CAs–) and 1,3-Diarsaallendiide (AsCAs2–) Ligands Coordinated to Uranium and Generated via Activation of the Arsaethynolate Ligand (OCAs–)". Angewandte Chemie. 58 (6): 1679–1683. doi:10.1002/anie.201811332. PMID 30427562. S2CID 53306476.